Expanded-metal machine



Nov. 1 1 4 1,515,390

L. E. CURTIS ET AL' EXPANDED METAL MACHINE 2 Sheetgn-Shaae- 1' Original Filed Dec. 8, 192 2 Nov. 11, 1924. 1,515,190

L. E. CURTIS ET AL WW5 i WWI Patented Nov.;11 1924.

stares LEWIS E. CURTIS AND JOHN MANOFSKY, 0F WARREN, OHIO, AS SIGNORS 'I'O YOUNGS- TOWN PRESSED STEEL COMPANY, OF WARREN, OHIO, A CORPORATION OF OHIO.

EXPANDED-METAL MACHINE.

Original application filed December 8, 1922, Serial N 0.

605,734. Patent No. 1,493,956, dated m 13, 1924.

Divided and this-application filed December 13, 1923. Serial No. 680,456.

To all whom it may concern:

Be it known that we, Lnwrs E. Currie and JOHN MANOFSKY, citizens of the United States, residing at Warren, in the county of Trumbull and State of Ohio, have invented a new and useful Improvement in Ekpanded-Metal Machines, of which the following is a specification.

e present invention relates to improvements in expanded metal machines andwill be fully understood from the'following description and the accompanying drawings in which:

Figure 1 is a partial side elevation of one of the arms of the expanded metal machine;

2 is a transverse section on the line in the drawing lanview of the bed of the trave of the sheet, the blank being expanded from its center outwardly by deflection of the strands of the blank and the unexpanded edge portions being held by the divergent expanding arms as they pass therethrough. I

' The blank which has been previously slitted is fed endwise to the guides 10 of the expanding arm 11 by means not shown herein. A similar expanding arm (not shown) turns 'downand the advancing slitted blank held along its outer edges is expanded by the diverging arms. These oppositely disposed arms are substantially slmilarin construction and operation. 7

e upper expanding arm 11 is pivotally mounted at 12 on suitable brackets 13'on the main frame of the machine. At the outer end it is adjustably carried by a screw (not shown) so as to he movable up and (lO I1- om these rollers, so

shaft "-27. the latter be '33. wing nut 34 is 11 is formed of a U shaped cross-secthe expanding arm. These rolls are preferably formed of laminated construction, be ing made of circular plates 17 and 18 of alternately larger and smaller diameter. A grooved roll is thusformed, the grooves of which correspond to the sions in the slitted blank resulting from the slitting operation.

The bed or way of the arms is made up by inserting spacers between the feed rolls 16. These spacers 19 andv higher and lower, the higher being on substantially the same level as the to s of the rollers 16 and in alignment .with t e plates that the grooves formed width of depres- 20 are alternately ill" the bed are continuous with and correspond to the grooves "in the feed roll. It will be further noted that the lower spacers 20 are substantially of 'T-shape, the arms ofthe T extending into the grooves in the adjacent feed-rolls andthereby serve also as 0 strippers for the feed' rolls.

The spacers 19 and 20 are secured to the U-shaped member 14 by means of bolts 21. These bolts also pass through the trapezoidal plates 22, and through the serrated edge bar 85..

23, the latter being continuous.

The spacers 19 and 20 between the feed rolls 16. have delpending feet which'r est' upon a bar 24 w ich issecured-to the U- shaped member. 14 Screws 25 serve to the T-s'haped spacers in position. l Above each feedroll 16iismounted an HP'. per feed roll 26 cally by suitable hearings on the expander-arm. At,' the end of each shaft 27 is 29 which meshes with'a gear ';('not shown) on each shaft 15 so that thesefeed'rollsconstantly revolve together. The sleeve 28 is provided near the gear 29 a rod 31 which passes through an opening mounted. a gear 1 with'a projecting ear 30 into which is hooked the bent end of in any desired manner; 90. hold the lowenends of which is; journalled on a ing carried eccentriat a sleeve 28 which is journalled in;

in a lug 32 projecting from the framework screwed on the rod 31 Between the upper feed rolls 26 are pro vided the spring pressed plungers 36. lhese screw 42.

vconstruction and arrangement may are suspended by the bolts 37 which pass through the sleeve 38 mounted in a ledge 39 projecting from the upper frame 33. The nuts 40 on the bolts 37 determine the lowermost position of the plungers or feet 36. A coil spring 41 extends from each plunger into an opening in the ledge 39, the tension of the spring being adjusted by means of the While we have v hown and described cer tain embodiments of our invention, it is to be understood that it is capable of many modifications. Changes therefore in the be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is our intention to claim all novelty inherent in our invention as broadly as possible in view of the prior art.

We claim:

1. In a metal expanding machine, an expander-arm having a series of lower feed rolls and spacer members between said feed rolls, said spacer members being formed of I adjacently positioned plates, alternately higher and lower in elevation, whereby a grooved bed is formed.

2. In a metal expanding machine, an expander-arm having a series 0t lower teed rolls and spacer members between said teed rolls, said spacer members being formed of adjacently positioned plates, alternately hi her and lower in elevation, said plates being bolted tovthe expander arm whereby a grooved bed is formed. p a

3. In a metal expanding machine, an expander-arm having'a serles of lower teed rolls and spacer members between said feed rolls, said spacer members being formed of adj acently positioned. plates, alternately higher and lower in elevation, said rolls having annular plates, said lower plates extcndin into said grooves, whereby a' grooved bed is formed.

l. In a metal expanding machine, an expander-arm having a serles of lower teed rolls and spacer members between said feed rolls, said spacer members being formed of adjacently positioned plates, alternately higher and lower in elevation, said rolls hav ing annular grooves matching said lower plates, said lower plates being T-shaped, the ends of said T extending into said grooves, whereby a grooved bed is formed.

Lnwrs in onia'ris. Jenn anorsnr.

grooves matching said lower 

